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The axis is an imaginary line drawn thru the north pole and south pole). It helps to understand the occurrence of seasons on Earth. The scientists use the tilt(23.5 degrees) to show how the northern and southern hemispheres get the four seasons. The tilt is always in one direction and as the earth revolves around the Sun we get the seasons on earth.

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Q: How do scientists know about the axis of earth?
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Related questions

What do scientists think will probably cause Earth's next ice age?

changes in Earth's orbit and the tilt of its axis


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Many, many planetesmals and possibly a few protoplanets.


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It is not a matter of belief. It has been scientifically measured that the Chilean earthquake caused the Earth's axis to shift approximately two inches.


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Earth's Axis of Rotation, or Earth's Rotational Axis.I haven't heard of other terms.


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The Earth spins about its axis. That defines the Earth's axis. It is the axis of spin that is tilted. If the Earth were not spinning it would not have an axis.


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a compass


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Hell if I know.


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The Earth rotates on its axis.


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We may possibly know how Earth was created.


What term do space scientists use to describe the earth spinning one time on it's axis?

The term is called 'Rotation', or more commonly used, Earth's Rotation. :)